PC dvd player not recognising discs

  frostypug 10:24 16 May 2009

I have a factory installed dvd writer HL-DT-ST DVD-RW GSA-H41N ATA DEVICE
The pc recognises is it there and says it is working properly but pc does not show there is a disc in and nero does'nt either.
Any help much appreciated
I am running Vista on a desktop

  Fruit Bat /\0/\ 13:39 16 May 2009

1 Uninstall and reinstall in device manager

2.No CD/DVD or CD-ROM access is missing error Code 19, Code 31, Code 32, Code 39, or Code 41
Try this if the optical drives are not appearing in My Computer or Device Manager.
(This is sometimes caused by the removal of Roxio or other writing software.)
click here
Download XP_CD-DVD-Fix.zip and save this file to your hard drive. Navigate to where you saved it and double click the file to extract the contents. Locate the EXE file you extracted and double click it. A confirmation dialog will appear when the script is done. You may need to reboot for the change to take effect.
This utility is only intended for Windows® XP, but also appears to work for Vista.
You may need Administrator level access to use this utility. If you do not have Administrator level access, the program will say it is finished, but will not have made any changes.

Run regedit and navigate to registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}.
Highlight it and in the right pane, find the Upperfilters and Lowerfilters values.
Highlight each one in turn, right click and delete them.
Close regedit and restart the computer.
If in doubt make a restore point before making changes.

click here

3. check Data cable is fully insert at drive and motherboard end.

4. try another cable

5. change the drive, laser is probably gone.
At less than £20 for a new one they are not worth messing with.

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